Answer:
The element with an atomic weight of 14 is Nitrogen. Nitrogen is a chemical element with the symbol N and atomic number 7. It is a nonmetallic element that belongs to the group 15 of the periodic table. Nitrogen is the most abundant element in Earth's atmosphere, making up about 78% of its composition.
Nitrogen has an atomic weight of approximately 14.007 atomic mass units (amu). Atomic weight is the average mass of an element's atoms, taking into account the different isotopes and their relative abundance. In the case of nitrogen, it has two stable isotopes: nitrogen-14 (99.63% abundance) and nitrogen-15 (0.37% abundance). The atomic weight is calculated by considering the mass and abundance of each isotope.
Nitrogen plays a crucial role in various biological and industrial processes. It is an essential component of proteins, nucleic acids (DNA and RNA), and many other organic compounds found in living organisms. Nitrogen fixation, the process by which atmospheric nitrogen is converted into a usable form by certain bacteria, allows plants to incorporate nitrogen into their tissues.
In industry, nitrogen is used in various applications such as manufacturing fertilizers, producing ammonia for explosives and chemicals, preserving food products, and creating an inert atmosphere for certain processes. Liquid nitrogen is also commonly used for cryogenic purposes, including freezing and preserving biological samples.
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